Lubricator



'(NModeL l 2 Sheets-Sheet 1.

H. P. TIPPETT.

` LUBRIGATOR No. 556,074 Patented Mar. 10, 1896.

s atto/anew( -more fully illustrate the operation of my de- UNITED iSTATES HAROLD P. TIPPETT,

PATENT OFFICE.

OF COLUMBUS, OHIO.

LUBRICATOR.

`SPECIIEICA'IION forming part of Letters Patent No. 556,074, dated March10, 1896.

Appiicaion nea April 15, 1895.

To all whom t may concern:

Be it known that I, HAROLD P. TIPPETT, a citizen of the United States,residing at Oolumbus, in the county of Franklin and State of Ohio, haveinvented a certain new and useful Improvement in Lubricating Mechanismfor Locomotive Cylinders and Valves, of which the following is aspecification.

My invention relates to the improvement of locomotive cylindei1 andvalve lubricating mechanism; and it consists in the improvedconstruction and arrangement of parts fully set forth hereinafter and bymeans of which the objects of my invention as hereinafter stated areattained.

These improvements I produce in the manner illustrated in theaccompanying drawings, in whichp Figure 1 is a side elevation of aportion of a locomotive-boiler, showing my improved lubricatingmechanism thereon. Fig. 2 is a plan view of the same. Fig. 3 is acentral vertical section of the steam-dome, showing the connectiontherein of the cylinder supplypipe and the additional or auxiliarysteampipe which I employ in carrying out my invention; and Fig. 4 is adetail sectional View of t-he upper lubricator feed-arm, showing thenozzle therein.

Similar letters refer to similar parts throughout the several views.

a represents a locomotive boiler; b, the steam-dome, which risestherefrom in the usualmanner, and c the cylinder-lubricator, which maybe supported at the rear end of the boiler in the usual manner.

The lubricator shown and employed in conjunction with my improvement isof that type which consists in a condenser o', the latter communicatingin the usual manner with an oil-reservoir c2 located beneath saidcondenser and connected or formed therewith. The lubricator-bodyis alsoprovided with the usual external sight feed-tubes d and the outlet orfeed arms e. Each of these feed-arms contain the usual outlet-nozzle e',which in order to vice I have shown in section in Fig. 4 of thedrawings. This nozzle, as is usual, is provided with an exceedinglysmall discharge-opening e2, which communicates in the usual manner wit-hthe tallow-pipes f. As indicated in the Serial No. 545,703. (No model.

drawings, these tallow-pipes, of which there are two, lead downward andforward on opposite sides of the boiler and communicate with thesteam-chests f' in the usual manner. vThe lubricator-condenser c isprovided with an extension-top g, from the upper end portion of whichleads to each of the upper lfeed-arms e an equalizer-pipe g.

This pipe extension g and condenser are fed in the ,ordinary mann er bya constant supply of steam from the boiler through the medium of theusual feed-pipe g2.

h represents the cylinder steam-supply pipe, which rises within thesteam-dome b, as indicated in Fig. 3 of the drawings. The upper endportion of this steam-pipe h is provided with the usual throttle-valveh. From the pipe h, and preferably from a point in its upper portion,leads a smaller steam-pipe h2, the latter extending outward and rearwardthrough the side of the dome b and having its outer end connecting, asindicated at h2, with the central portion of a substantially U- shapedpipe-arm h4, the downwardly-extending portions of which embrace oppositesides of the rear portion of the boiler and connect, by means ofsuitable Y-couplings i, preferably with the rear portions of thetallow-pipes f.

As is usual in the class of lubricating devices to which my inventionpertains, the

condenser c and its extension g are provided with a constant supply ofsteam from the boiler through the medium of the pipe g2, and theequalizer-pipes g', which lead into the feed-arms e, furnish steamsupplies which meet the oil in the upper feed-arms, said oil being, asis usual, driven to said feed-arms through the pressure within the bodyof the lubricator and the weight of the water in the condenser. Theconstruction and operation of this form of lubricator are, however, wellknown, and for that reason I do not deem it necessary to give a detaildescription of the same.

The feed-arm nozzles e', which are provided with the exceedingly smalldischargeopenings, serve in the usual manner to equalize the pressurewithin the lubricator, said nozzles also acting as atomizers in thedischarge of the combined steam and oil in the form of spray into thetallow-pipes f. Owing to the fact that the steam supply for the lu- IOObricator is directly from the boiler, it is evident that the escape ofsteam and oil through the feed arm is substantially continuous, eventhough the throttle-valve be closed and the engine is motionless. Whenthe throttlevalve is open and the steam is thus admitted to thesteam-chest, it has been found that the small volume of steam whichescapes through the nozzle condenses within the t-allowpipes at or nearthe poi nts 5, (indicated in the drawings,) resulting in a reducedpressure of the steam therein. This reduced steam-pressure is notsuiiicient to resist the back-pressure of steam from the steam-chest,with the result that the steam from said chest, rising in thetalloW-pipes and meeting the condensation therein, also becomescondensed. In this manner the tallow pipes become iilled or choked withoil and water and are thereby rendered useless.

By the use of the pipe 7b2 and its branch 711" it will be seen that aconnection is formed between the supply-pipe 71l and the rear portionsof the tallow-pipes f, these connections being made, as indicated, atpoints near the points of condensation referred to in said tallow-pipes.

Owing to the fact that the pipe 7F has no communication with thesteam-dome,bnt with the supply-pipe 7L', it is evident that thetallow-pipes are not supplied with the additional volume of steamthrough said pipe 71,2 unless the throttle-valve is open. Vhen thethrottle -valve is open, however, the additional steam-pressure suppliedthrough the medium of the pipe h2 to the tallow-pipes results in aforcing of anyeondensed steam or other matter contained in thetallow-pipes to the steamehests and in a consequent clearing of saidpipes. This additional steam-pressure, as

will readily be seen, serves to overcome any back-pressure from thesteam-chests and assists the lubricator in its work of providing auniform discharge of the oil into said chests and cylinders.

It is evident that the direct connection of the tallow-pipes with aconstant steam source, such as the steam dome or boiler, instead of withthe pipe 71, must result in the tallowpipes being supplied withsteam-pressures which would be almost if not entirely sufficient to movethe engine. By the construetion and arrangement of parts which I haveshown and described it will be seen that this additional steampressurein the tallow-pipes is had at such times only as the steam-pressure isnecessary.

From the construction and operation of my improvement it will beobserved that simple, reliable and effective means are provided forsupplying a uniform discharge of oil from the lubricators to the steamchests and cylinders and that by its use the equalization of press urewithin the lubrieator is in no wise inter- Eered with.

Having now fully described my invention, what I claim, and desire tosecure by Letters Patent, is*

In a lubricating mechanism for locomotive cylinders and valves thecombination with a locomotive-boiler, steam chests and cylinders, anoil-discharging lubrieator and tallow-pipes leading therefrom to saidsteamchests, of a steam-pipe leading from the cylinder supply-pipe at apoint between the throttle-valve and cylinders into said tallowpipes atpoints on the outer side of the lubrieator-nozzle, substantially as andi'or the purpose specified.

C. C. SHEPHERD, WALTER B. PAGE.

